/* Interface between GDB and target environments, including files and processes
- Copyright (C) 1990-2013 Free Software Foundation, Inc.
+ Copyright (C) 1990-2014 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by John Gilmore.
struct static_tracepoint_marker;
struct traceframe_info;
struct expression;
+struct dcache_struct;
/* This include file defines the interface between the main part
of the debugger, and the part which is target-specific, or
it goes into the file stratum, which is always below the process
stratum. */
+#include "target/resume.h"
+#include "target/wait.h"
+#include "target/waitstatus.h"
#include "bfd.h"
#include "symtab.h"
#include "memattr.h"
tc_schedlock = 1, /* Can lock the thread scheduler. */
};
-/* Stuff for target_wait. */
-
-/* Generally, what has the program done? */
-enum target_waitkind
- {
- /* The program has exited. The exit status is in value.integer. */
- TARGET_WAITKIND_EXITED,
-
- /* The program has stopped with a signal. Which signal is in
- value.sig. */
- TARGET_WAITKIND_STOPPED,
-
- /* The program has terminated with a signal. Which signal is in
- value.sig. */
- TARGET_WAITKIND_SIGNALLED,
-
- /* The program is letting us know that it dynamically loaded something
- (e.g. it called load(2) on AIX). */
- TARGET_WAITKIND_LOADED,
-
- /* The program has forked. A "related" process' PTID is in
- value.related_pid. I.e., if the child forks, value.related_pid
- is the parent's ID. */
-
- TARGET_WAITKIND_FORKED,
-
- /* The program has vforked. A "related" process's PTID is in
- value.related_pid. */
-
- TARGET_WAITKIND_VFORKED,
-
- /* The program has exec'ed a new executable file. The new file's
- pathname is pointed to by value.execd_pathname. */
-
- TARGET_WAITKIND_EXECD,
-
- /* The program had previously vforked, and now the child is done
- with the shared memory region, because it exec'ed or exited.
- Note that the event is reported to the vfork parent. This is
- only used if GDB did not stay attached to the vfork child,
- otherwise, a TARGET_WAITKIND_EXECD or
- TARGET_WAITKIND_EXIT|SIGNALLED event associated with the child
- has the same effect. */
- TARGET_WAITKIND_VFORK_DONE,
-
- /* The program has entered or returned from a system call. On
- HP-UX, this is used in the hardware watchpoint implementation.
- The syscall's unique integer ID number is in value.syscall_id. */
-
- TARGET_WAITKIND_SYSCALL_ENTRY,
- TARGET_WAITKIND_SYSCALL_RETURN,
-
- /* Nothing happened, but we stopped anyway. This perhaps should be handled
- within target_wait, but I'm not sure target_wait should be resuming the
- inferior. */
- TARGET_WAITKIND_SPURIOUS,
-
- /* An event has occured, but we should wait again.
- Remote_async_wait() returns this when there is an event
- on the inferior, but the rest of the world is not interested in
- it. The inferior has not stopped, but has just sent some output
- to the console, for instance. In this case, we want to go back
- to the event loop and wait there for another event from the
- inferior, rather than being stuck in the remote_async_wait()
- function. sThis way the event loop is responsive to other events,
- like for instance the user typing. */
- TARGET_WAITKIND_IGNORE,
-
- /* The target has run out of history information,
- and cannot run backward any further. */
- TARGET_WAITKIND_NO_HISTORY,
-
- /* There are no resumed children left in the program. */
- TARGET_WAITKIND_NO_RESUMED
- };
-
-struct target_waitstatus
- {
- enum target_waitkind kind;
-
- /* Forked child pid, execd pathname, exit status, signal number or
- syscall number. */
- union
- {
- int integer;
- enum gdb_signal sig;
- ptid_t related_pid;
- char *execd_pathname;
- int syscall_number;
- }
- value;
- };
-
-/* Options that can be passed to target_wait. */
-
-/* Return immediately if there's no event already queued. If this
- options is not requested, target_wait blocks waiting for an
- event. */
-#define TARGET_WNOHANG 1
-
/* The structure below stores information about a system call.
It is basically used in the "catch syscall" command, and in
every function that gives information about a system call.
if it is not in a region marked as such, since it is known to be
"normal" RAM. */
TARGET_OBJECT_STACK_MEMORY,
+ /* Memory known to be part of the target code. This is cached even
+ if it is not in a region marked as such. */
+ TARGET_OBJECT_CODE_MEMORY,
/* Kernel Unwind Table. See "ia64-tdep.c". */
TARGET_OBJECT_UNWIND_TABLE,
/* Transfer auxilliary vector. */
/* Possible future objects: TARGET_OBJECT_FILE, ... */
};
+/* Possible values returned by target_xfer_partial, etc. */
+
+enum target_xfer_status
+{
+ /* Some bytes are transferred. */
+ TARGET_XFER_OK = 1,
+
+ /* No further transfer is possible. */
+ TARGET_XFER_EOF = 0,
+
+ /* Generic I/O error. Note that it's important that this is '-1',
+ as we still have target_xfer-related code returning hardcoded
+ '-1' on error. */
+ TARGET_XFER_E_IO = -1,
+
+ /* Transfer failed because the piece of the object requested is
+ unavailable. */
+ TARGET_XFER_E_UNAVAILABLE = -2,
+
+ /* Keep list in sync with target_xfer_error_to_string. */
+};
+
+#define TARGET_XFER_STATUS_ERROR_P(STATUS) ((STATUS) < TARGET_XFER_EOF)
+
+/* Return the string form of ERR. */
+
+extern const char *target_xfer_status_to_string (enum target_xfer_status err);
+
/* Enumeration of the kinds of traceframe searches that a target may
be able to perform. */
typedef struct static_tracepoint_marker *static_tracepoint_marker_p;
DEF_VEC_P(static_tracepoint_marker_p);
+typedef enum target_xfer_status
+ target_xfer_partial_ftype (struct target_ops *ops,
+ enum target_object object,
+ const char *annex,
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset,
+ ULONGEST len,
+ ULONGEST *xfered_len);
+
/* Request that OPS transfer up to LEN 8-bit bytes of the target's
OBJECT. The OFFSET, for a seekable object, specifies the
starting point. The ANNEX can be used to provide additional
data-specific information to the target.
- Return the number of bytes actually transfered, or -1 if the
- transfer is not supported or otherwise fails. Return of a positive
- value less than LEN indicates that no further transfer is possible.
- Unlike the raw to_xfer_partial interface, callers of these
- functions do not need to retry partial transfers. */
+ Return the number of bytes actually transfered, or a negative error
+ code (an 'enum target_xfer_error' value) if the transfer is not
+ supported or otherwise fails. Return of a positive value less than
+ LEN indicates that no further transfer is possible. Unlike the raw
+ to_xfer_partial interface, callers of these functions do not need
+ to retry partial transfers. */
extern LONGEST target_read (struct target_ops *ops,
enum target_object object,
enum target_object object,
const char *annex);
+/* See target_ops->to_xfer_partial. */
+extern target_xfer_partial_ftype target_xfer_partial;
+
/* Wrappers to target read/write that perform memory transfers. They
throw an error if the memory transfer fails.
\f
struct thread_info; /* fwd decl for parameter list below: */
+/* The type of the callback to the to_async method. */
+
+typedef void async_callback_ftype (enum inferior_event_type event_type,
+ void *context);
+
+/* These defines are used to mark target_ops methods. The script
+ make-target-delegates scans these and auto-generates the base
+ method implementations. There are four macros that can be used:
+
+ 1. TARGET_DEFAULT_IGNORE. There is no argument. The base method
+ does nothing. This is only valid if the method return type is
+ 'void'.
+
+ 2. TARGET_DEFAULT_NORETURN. The argument is a function call, like
+ 'tcomplain ()'. The base method simply makes this call, which is
+ assumed not to return.
+
+ 3. TARGET_DEFAULT_RETURN. The argument is a C expression. The
+ base method returns this expression's value.
+
+ 4. TARGET_DEFAULT_FUNC. The argument is the name of a function.
+ make-target-delegates does not generate a base method in this case,
+ but instead uses the argument function as the base method. */
+
+#define TARGET_DEFAULT_IGNORE()
+#define TARGET_DEFAULT_NORETURN(ARG)
+#define TARGET_DEFAULT_RETURN(ARG)
+#define TARGET_DEFAULT_FUNC(ARG)
+
struct target_ops
{
struct target_ops *beneath; /* To the target under this one. */
New re-entrant targets provide "to_xclose" and that is expected
to xfree everything (including the "struct target_ops"). */
void (*to_xclose) (struct target_ops *targ);
- void (*to_close) (void);
+ void (*to_close) (struct target_ops *);
void (*to_attach) (struct target_ops *ops, char *, int);
- void (*to_post_attach) (int);
- void (*to_detach) (struct target_ops *ops, char *, int);
+ void (*to_post_attach) (struct target_ops *, int);
+ void (*to_detach) (struct target_ops *ops, const char *, int);
void (*to_disconnect) (struct target_ops *, char *, int);
- void (*to_resume) (struct target_ops *, ptid_t, int, enum gdb_signal);
+ void (*to_resume) (struct target_ops *, ptid_t, int, enum gdb_signal)
+ TARGET_DEFAULT_NORETURN (noprocess ());
ptid_t (*to_wait) (struct target_ops *,
- ptid_t, struct target_waitstatus *, int);
+ ptid_t, struct target_waitstatus *, int)
+ TARGET_DEFAULT_NORETURN (noprocess ());
void (*to_fetch_registers) (struct target_ops *, struct regcache *, int);
- void (*to_store_registers) (struct target_ops *, struct regcache *, int);
- void (*to_prepare_to_store) (struct regcache *);
+ void (*to_store_registers) (struct target_ops *, struct regcache *, int)
+ TARGET_DEFAULT_NORETURN (noprocess ());
+ void (*to_prepare_to_store) (struct target_ops *, struct regcache *);
/* Transfer LEN bytes of memory between GDB address MYADDR and
target address MEMADDR. If WRITE, transfer them to the target, else
struct target_ops *target);
void (*to_files_info) (struct target_ops *);
- int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *);
- int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *);
- int (*to_can_use_hw_breakpoint) (int, int, int);
+ int (*to_insert_breakpoint) (struct target_ops *, struct gdbarch *,
+ struct bp_target_info *)
+ TARGET_DEFAULT_FUNC (memory_insert_breakpoint);
+ int (*to_remove_breakpoint) (struct target_ops *, struct gdbarch *,
+ struct bp_target_info *)
+ TARGET_DEFAULT_FUNC (memory_remove_breakpoint);
+ int (*to_can_use_hw_breakpoint) (struct target_ops *, int, int, int);
int (*to_ranged_break_num_registers) (struct target_ops *);
- int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
- int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
+ int (*to_insert_hw_breakpoint) (struct target_ops *,
+ struct gdbarch *, struct bp_target_info *);
+ int (*to_remove_hw_breakpoint) (struct target_ops *,
+ struct gdbarch *, struct bp_target_info *);
/* Documentation of what the two routines below are expected to do is
provided with the corresponding target_* macros. */
- int (*to_remove_watchpoint) (CORE_ADDR, int, int, struct expression *);
- int (*to_insert_watchpoint) (CORE_ADDR, int, int, struct expression *);
+ int (*to_remove_watchpoint) (struct target_ops *,
+ CORE_ADDR, int, int, struct expression *);
+ int (*to_insert_watchpoint) (struct target_ops *,
+ CORE_ADDR, int, int, struct expression *);
int (*to_insert_mask_watchpoint) (struct target_ops *,
CORE_ADDR, CORE_ADDR, int);
int (*to_remove_mask_watchpoint) (struct target_ops *,
CORE_ADDR, CORE_ADDR, int);
- int (*to_stopped_by_watchpoint) (void);
+ int (*to_stopped_by_watchpoint) (struct target_ops *)
+ TARGET_DEFAULT_RETURN (0);
int to_have_steppable_watchpoint;
int to_have_continuable_watchpoint;
- int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *);
+ int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *)
+ TARGET_DEFAULT_RETURN (0);
int (*to_watchpoint_addr_within_range) (struct target_ops *,
CORE_ADDR, CORE_ADDR, int);
/* Documentation of this routine is provided with the corresponding
target_* macro. */
- int (*to_region_ok_for_hw_watchpoint) (CORE_ADDR, int);
+ int (*to_region_ok_for_hw_watchpoint) (struct target_ops *,
+ CORE_ADDR, int);
- int (*to_can_accel_watchpoint_condition) (CORE_ADDR, int, int,
+ int (*to_can_accel_watchpoint_condition) (struct target_ops *,
+ CORE_ADDR, int, int,
struct expression *);
int (*to_masked_watch_num_registers) (struct target_ops *,
CORE_ADDR, CORE_ADDR);
- void (*to_terminal_init) (void);
- void (*to_terminal_inferior) (void);
- void (*to_terminal_ours_for_output) (void);
- void (*to_terminal_ours) (void);
- void (*to_terminal_save_ours) (void);
- void (*to_terminal_info) (const char *, int);
+ void (*to_terminal_init) (struct target_ops *);
+ void (*to_terminal_inferior) (struct target_ops *);
+ void (*to_terminal_ours_for_output) (struct target_ops *);
+ void (*to_terminal_ours) (struct target_ops *);
+ void (*to_terminal_save_ours) (struct target_ops *);
+ void (*to_terminal_info) (struct target_ops *, const char *, int);
void (*to_kill) (struct target_ops *);
- void (*to_load) (char *, int);
+ void (*to_load) (struct target_ops *, char *, int);
void (*to_create_inferior) (struct target_ops *,
char *, char *, char **, int);
- void (*to_post_startup_inferior) (ptid_t);
- int (*to_insert_fork_catchpoint) (int);
- int (*to_remove_fork_catchpoint) (int);
- int (*to_insert_vfork_catchpoint) (int);
- int (*to_remove_vfork_catchpoint) (int);
- int (*to_follow_fork) (struct target_ops *, int);
- int (*to_insert_exec_catchpoint) (int);
- int (*to_remove_exec_catchpoint) (int);
- int (*to_set_syscall_catchpoint) (int, int, int, int, int *);
- int (*to_has_exited) (int, int, int *);
+ void (*to_post_startup_inferior) (struct target_ops *, ptid_t);
+ int (*to_insert_fork_catchpoint) (struct target_ops *, int);
+ int (*to_remove_fork_catchpoint) (struct target_ops *, int);
+ int (*to_insert_vfork_catchpoint) (struct target_ops *, int);
+ int (*to_remove_vfork_catchpoint) (struct target_ops *, int);
+ int (*to_follow_fork) (struct target_ops *, int, int);
+ int (*to_insert_exec_catchpoint) (struct target_ops *, int);
+ int (*to_remove_exec_catchpoint) (struct target_ops *, int);
+ int (*to_set_syscall_catchpoint) (struct target_ops *,
+ int, int, int, int, int *);
+ int (*to_has_exited) (struct target_ops *, int, int, int *);
void (*to_mourn_inferior) (struct target_ops *);
- int (*to_can_run) (void);
+ int (*to_can_run) (struct target_ops *);
/* Documentation of this routine is provided with the corresponding
target_* macro. */
- void (*to_pass_signals) (int, unsigned char *);
+ void (*to_pass_signals) (struct target_ops *, int, unsigned char *);
/* Documentation of this routine is provided with the
corresponding target_* function. */
- void (*to_program_signals) (int, unsigned char *);
+ void (*to_program_signals) (struct target_ops *, int, unsigned char *);
int (*to_thread_alive) (struct target_ops *, ptid_t ptid);
void (*to_find_new_threads) (struct target_ops *);
char *(*to_pid_to_str) (struct target_ops *, ptid_t);
- char *(*to_extra_thread_info) (struct thread_info *);
- char *(*to_thread_name) (struct thread_info *);
- void (*to_stop) (ptid_t);
- void (*to_rcmd) (char *command, struct ui_file *output);
- char *(*to_pid_to_exec_file) (int pid);
- void (*to_log_command) (const char *);
+ char *(*to_extra_thread_info) (struct target_ops *, struct thread_info *);
+ char *(*to_thread_name) (struct target_ops *, struct thread_info *);
+ void (*to_stop) (struct target_ops *, ptid_t);
+ void (*to_rcmd) (struct target_ops *,
+ char *command, struct ui_file *output);
+ char *(*to_pid_to_exec_file) (struct target_ops *, int pid);
+ void (*to_log_command) (struct target_ops *, const char *);
struct target_section_table *(*to_get_section_table) (struct target_ops *);
enum strata to_stratum;
int (*to_has_all_memory) (struct target_ops *);
int to_has_thread_control; /* control thread execution */
int to_attach_no_wait;
/* ASYNC target controls */
- int (*to_can_async_p) (void);
- int (*to_is_async_p) (void);
- void (*to_async) (void (*) (enum inferior_event_type, void *), void *);
- int (*to_supports_non_stop) (void);
+ int (*to_can_async_p) (struct target_ops *)
+ TARGET_DEFAULT_FUNC (find_default_can_async_p);
+ int (*to_is_async_p) (struct target_ops *)
+ TARGET_DEFAULT_FUNC (find_default_is_async_p);
+ void (*to_async) (struct target_ops *, async_callback_ftype *, void *)
+ TARGET_DEFAULT_NORETURN (tcomplain ());
+ int (*to_supports_non_stop) (struct target_ops *);
/* find_memory_regions support method for gcore */
- int (*to_find_memory_regions) (find_memory_region_ftype func, void *data);
+ int (*to_find_memory_regions) (struct target_ops *,
+ find_memory_region_ftype func, void *data);
/* make_corefile_notes support method for gcore */
- char * (*to_make_corefile_notes) (bfd *, int *);
+ char * (*to_make_corefile_notes) (struct target_ops *, bfd *, int *);
/* get_bookmark support method for bookmarks */
- gdb_byte * (*to_get_bookmark) (char *, int);
+ gdb_byte * (*to_get_bookmark) (struct target_ops *, char *, int);
/* goto_bookmark support method for bookmarks */
- void (*to_goto_bookmark) (gdb_byte *, int);
+ void (*to_goto_bookmark) (struct target_ops *, gdb_byte *, int);
/* Return the thread-local address at OFFSET in the
thread-local storage for the thread PTID and the shared library
or executable file given by OBJFILE. If that block of
starting point. The ANNEX can be used to provide additional
data-specific information to the target.
- Return the number of bytes actually transfered, zero when no
- further transfer is possible, and -1 when the transfer is not
- supported. Return of a positive value smaller than LEN does
- not indicate the end of the object, only the end of the
- transfer; higher level code should continue transferring if
- desired. This is handled in target.c.
+ Return the transferred status, error or OK (an
+ 'enum target_xfer_status' value). Save the number of bytes
+ actually transferred in *XFERED_LEN if transfer is successful
+ (TARGET_XFER_OK) or the number unavailable bytes if the requested
+ data is unavailable (TARGET_XFER_E_UNAVAILABLE). *XFERED_LEN
+ smaller than LEN does not indicate the end of the object, only
+ the end of the transfer; higher level code should continue
+ transferring if desired. This is handled in target.c.
The interface does not support a "retry" mechanism. Instead it
assumes that at least one byte will be transfered on each
See target_read and target_write for more information. One,
and only one, of readbuf or writebuf must be non-NULL. */
- LONGEST (*to_xfer_partial) (struct target_ops *ops,
- enum target_object object, const char *annex,
- gdb_byte *readbuf, const gdb_byte *writebuf,
- ULONGEST offset, LONGEST len);
+ enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
+ enum target_object object,
+ const char *annex,
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
+ TARGET_DEFAULT_RETURN (TARGET_XFER_E_IO);
/* Returns the memory map for the target. A return value of NULL
means that no memory map is available. If a memory address
based on LWP and THREAD. These values are extracted from the
task Private_Data section of the Ada Task Control Block, and
their interpretation depends on the target. */
- ptid_t (*to_get_ada_task_ptid) (long lwp, long thread);
+ ptid_t (*to_get_ada_task_ptid) (struct target_ops *,
+ long lwp, long thread);
/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
Return 0 if *READPTR is already at the end of the buffer.
CORE_ADDR *found_addrp);
/* Can target execute in reverse? */
- int (*to_can_execute_reverse) (void);
+ int (*to_can_execute_reverse) (struct target_ops *);
/* The direction the target is currently executing. Must be
implemented on targets that support reverse execution and async
(const char *id);
/* Return a traceframe info object describing the current
- traceframe's contents. This method should not cache data;
- higher layers take care of caching, invalidating, and
- re-fetching when necessary. */
+ traceframe's contents. If the target doesn't support
+ traceframe info, return NULL. If the current traceframe is not
+ selected (the current traceframe number is -1), the target can
+ choose to return either NULL or an empty traceframe info. If
+ NULL is returned, for example in remote target, GDB will read
+ from the live inferior. If an empty traceframe info is
+ returned, for example in tfile target, which means the
+ traceframe info is available, but the requested memory is not
+ available in it. GDB will try to see if the requested memory
+ is available in the read-only sections. This method should not
+ cache data; higher layers take care of caching, invalidating,
+ and re-fetching when necessary. */
struct traceframe_info *(*to_traceframe_info) (void);
/* Ask the target to use or not to use agent according to USE. Return 1
int (*to_can_use_agent) (void);
/* Check whether the target supports branch tracing. */
- int (*to_supports_btrace) (void);
+ int (*to_supports_btrace) (struct target_ops *)
+ TARGET_DEFAULT_RETURN (0);
/* Enable branch tracing for PTID and allocate a branch trace target
information struct for reading and for disabling branch trace. */
be attempting to talk to a remote target. */
void (*to_teardown_btrace) (struct btrace_target_info *tinfo);
- /* Read branch trace data. */
- VEC (btrace_block_s) *(*to_read_btrace) (struct btrace_target_info *,
- enum btrace_read_type);
+ /* Read branch trace data for the thread indicated by BTINFO into DATA.
+ DATA is cleared before new trace is added.
+ The branch trace will start with the most recent block and continue
+ towards older blocks. */
+ enum btrace_error (*to_read_btrace) (VEC (btrace_block_s) **data,
+ struct btrace_target_info *btinfo,
+ enum btrace_read_type type);
/* Stop trace recording. */
void (*to_stop_recording) (void);
void (*to_insn_history_from) (ULONGEST from, int size, int flags);
/* Disassemble a section of the recorded execution trace from instruction
- BEGIN (inclusive) to instruction END (exclusive). */
+ BEGIN (inclusive) to instruction END (inclusive). */
void (*to_insn_history_range) (ULONGEST begin, ULONGEST end, int flags);
/* Print a function trace of the recorded execution trace.
void (*to_call_history_from) (ULONGEST begin, int size, int flags);
/* Print a function trace of an execution trace section from function BEGIN
- (inclusive) to function END (exclusive). */
+ (inclusive) to function END (inclusive). */
void (*to_call_history_range) (ULONGEST begin, ULONGEST end, int flags);
+ /* Nonzero if TARGET_OBJECT_LIBRARIES_SVR4 may be read with a
+ non-empty annex. */
+ int (*to_augmented_libraries_svr4_read) (void);
+
+ /* Those unwinders are tried before any other arch unwinders. Use NULL if
+ it is not used. */
+ const struct frame_unwind *to_get_unwinder;
+ const struct frame_unwind *to_get_tailcall_unwinder;
+
+ /* Return the number of bytes by which the PC needs to be decremented
+ after executing a breakpoint instruction.
+ Defaults to gdbarch_decr_pc_after_break (GDBARCH). */
+ CORE_ADDR (*to_decr_pc_after_break) (struct target_ops *ops,
+ struct gdbarch *gdbarch);
+
int to_magic;
/* Need sub-structure for target machine related rather than comm related?
*/
This operation provides a target-specific hook that allows the
necessary bookkeeping to be performed after an attach completes. */
#define target_post_attach(pid) \
- (*current_target.to_post_attach) (pid)
+ (*current_target.to_post_attach) (¤t_target, pid)
/* Takes a program previously attached to and detaches it.
The program may resume execution (some targets do, some don't) and will
typed by the user (e.g. a signal to send the process). FROM_TTY
says whether to be verbose or not. */
-extern void target_detach (char *, int);
+extern void target_detach (const char *, int);
/* Disconnect from the current target without resuming it (leaving it
waiting for a debugger). */
debugged. */
#define target_prepare_to_store(regcache) \
- (*current_target.to_prepare_to_store) (regcache)
+ (*current_target.to_prepare_to_store) (¤t_target, regcache)
/* Determine current address space of thread PTID. */
#define target_can_run_breakpoint_commands() \
(*current_target.to_can_run_breakpoint_commands) ()
-/* Invalidate all target dcaches. */
-extern void target_dcache_invalidate (void);
-
extern int target_read_string (CORE_ADDR, char **, int, int *);
extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr,
ssize_t len);
+extern int target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr,
+ ssize_t len);
+
extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
+extern int target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
+
extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
ssize_t len);
#define target_files_info() \
(*current_target.to_files_info) (¤t_target)
-/* Insert a breakpoint at address BP_TGT->placed_address in the target
- machine. Result is 0 for success, or an errno value. */
+/* Insert a hardware breakpoint at address BP_TGT->placed_address in
+ the target machine. Returns 0 for success, and returns non-zero or
+ throws an error (with a detailed failure reason error code and
+ message) otherwise. */
extern int target_insert_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt);
/* Remove a breakpoint at address BP_TGT->placed_address in the target
- machine. Result is 0 for success, or an errno value. */
+ machine. Result is 0 for success, non-zero for error. */
extern int target_remove_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt);
before we actually run the inferior. */
#define target_terminal_init() \
- (*current_target.to_terminal_init) ()
+ (*current_target.to_terminal_init) (¤t_target)
/* Put the inferior's terminal settings into effect.
This is preparation for starting or resuming the inferior. */
should be called to get back to a normal state of affairs. */
#define target_terminal_ours_for_output() \
- (*current_target.to_terminal_ours_for_output) ()
+ (*current_target.to_terminal_ours_for_output) (¤t_target)
/* Put our terminal settings into effect.
First record the inferior's terminal settings
so they can be restored properly later. */
#define target_terminal_ours() \
- (*current_target.to_terminal_ours) ()
+ (*current_target.to_terminal_ours) (¤t_target)
/* Save our terminal settings.
This is called from TUI after entering or leaving the curses
to take this change into account. */
#define target_terminal_save_ours() \
- (*current_target.to_terminal_save_ours) ()
+ (*current_target.to_terminal_save_ours) (¤t_target)
/* Print useful information about our terminal status, if such a thing
exists. */
#define target_terminal_info(arg, from_tty) \
- (*current_target.to_terminal_info) (arg, from_tty)
+ (*current_target.to_terminal_info) (¤t_target, arg, from_tty)
/* Kill the inferior process. Make it go away. */
Such targets will supply an appropriate definition for this function. */
#define target_post_startup_inferior(ptid) \
- (*current_target.to_post_startup_inferior) (ptid)
+ (*current_target.to_post_startup_inferior) (¤t_target, ptid)
/* On some targets, we can catch an inferior fork or vfork event when
it occurs. These functions insert/remove an already-created
catchpoint type is not supported and -1 for failure. */
#define target_insert_fork_catchpoint(pid) \
- (*current_target.to_insert_fork_catchpoint) (pid)
+ (*current_target.to_insert_fork_catchpoint) (¤t_target, pid)
#define target_remove_fork_catchpoint(pid) \
- (*current_target.to_remove_fork_catchpoint) (pid)
+ (*current_target.to_remove_fork_catchpoint) (¤t_target, pid)
#define target_insert_vfork_catchpoint(pid) \
- (*current_target.to_insert_vfork_catchpoint) (pid)
+ (*current_target.to_insert_vfork_catchpoint) (¤t_target, pid)
#define target_remove_vfork_catchpoint(pid) \
- (*current_target.to_remove_vfork_catchpoint) (pid)
+ (*current_target.to_remove_vfork_catchpoint) (¤t_target, pid)
/* If the inferior forks or vforks, this function will be called at
the next resume in order to perform any bookkeeping and fiddling
This function returns 1 if the inferior should not be resumed
(i.e. there is another event pending). */
-int target_follow_fork (int follow_child);
+int target_follow_fork (int follow_child, int detach_fork);
/* On some targets, we can catch an inferior exec event when it
occurs. These functions insert/remove an already-created
catchpoint type is not supported and -1 for failure. */
#define target_insert_exec_catchpoint(pid) \
- (*current_target.to_insert_exec_catchpoint) (pid)
+ (*current_target.to_insert_exec_catchpoint) (¤t_target, pid)
#define target_remove_exec_catchpoint(pid) \
- (*current_target.to_remove_exec_catchpoint) (pid)
+ (*current_target.to_remove_exec_catchpoint) (¤t_target, pid)
/* Syscall catch.
for failure. */
#define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
- (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \
+ (*current_target.to_set_syscall_catchpoint) (¤t_target, \
+ pid, needed, any_count, \
table_size, table)
/* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
exit code of PID, if any. */
#define target_has_exited(pid,wait_status,exit_status) \
- (*current_target.to_has_exited) (pid,wait_status,exit_status)
+ (*current_target.to_has_exited) (¤t_target, \
+ pid,wait_status,exit_status)
/* The debugger has completed a blocking wait() call. There is now
some process event that must be processed. This function should
/* Does target have enough data to do a run or attach command? */
#define target_can_run(t) \
- ((t)->to_can_run) ()
+ ((t)->to_can_run) (t)
/* Set list of signals to be handled in the target.
placed in OUTBUF. */
#define target_rcmd(command, outbuf) \
- (*current_target.to_rcmd) (command, outbuf)
+ (*current_target.to_rcmd) (¤t_target, command, outbuf)
/* Does the target include all of memory, or only part of it? This
extern int target_async_permitted;
/* Can the target support asynchronous execution? */
-#define target_can_async_p() (current_target.to_can_async_p ())
+#define target_can_async_p() (current_target.to_can_async_p (¤t_target))
/* Is the target in asynchronous execution mode? */
-#define target_is_async_p() (current_target.to_is_async_p ())
+#define target_is_async_p() (current_target.to_is_async_p (¤t_target))
int target_supports_non_stop (void);
/* Put the target in async mode with the specified callback function. */
#define target_async(CALLBACK,CONTEXT) \
- (current_target.to_async ((CALLBACK), (CONTEXT)))
+ (current_target.to_async (¤t_target, (CALLBACK), (CONTEXT)))
#define target_execution_direction() \
(current_target.to_execution_direction ())
is okay. */
#define target_extra_thread_info(TP) \
- (current_target.to_extra_thread_info (TP))
+ (current_target.to_extra_thread_info (¤t_target, TP))
/* Return the thread's name. A NULL result means that the target
could not determine this thread's name. */
it must persist. */
#define target_pid_to_exec_file(pid) \
- (current_target.to_pid_to_exec_file) (pid)
+ (current_target.to_pid_to_exec_file) (¤t_target, pid)
/* See the to_thread_architecture description in struct target_ops. */
*/
#define target_find_memory_regions(FUNC, DATA) \
- (current_target.to_find_memory_regions) (FUNC, DATA)
+ (current_target.to_find_memory_regions) (¤t_target, FUNC, DATA)
/*
* Compose corefile .note section.
*/
#define target_make_corefile_notes(BFD, SIZE_P) \
- (current_target.to_make_corefile_notes) (BFD, SIZE_P)
+ (current_target.to_make_corefile_notes) (¤t_target, BFD, SIZE_P)
/* Bookmark interfaces. */
#define target_get_bookmark(ARGS, FROM_TTY) \
- (current_target.to_get_bookmark) (ARGS, FROM_TTY)
+ (current_target.to_get_bookmark) (¤t_target, ARGS, FROM_TTY)
#define target_goto_bookmark(ARG, FROM_TTY) \
- (current_target.to_goto_bookmark) (ARG, FROM_TTY)
+ (current_target.to_goto_bookmark) (¤t_target, ARG, FROM_TTY)
/* Hardware watchpoint interfaces. */
/* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
write). Only the INFERIOR_PTID task is being queried. */
-#define target_stopped_by_watchpoint \
- (*current_target.to_stopped_by_watchpoint)
+#define target_stopped_by_watchpoint() \
+ ((*current_target.to_stopped_by_watchpoint) (¤t_target))
/* Non-zero if we have steppable watchpoints */
(including this one?). OTHERTYPE is who knows what... */
#define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
- (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE);
+ (*current_target.to_can_use_hw_breakpoint) (¤t_target, \
+ TYPE, CNT, OTHERTYPE);
/* Returns the number of debug registers needed to watch the given
memory region, or zero if not supported. */
#define target_region_ok_for_hw_watchpoint(addr, len) \
- (*current_target.to_region_ok_for_hw_watchpoint) (addr, len)
+ (*current_target.to_region_ok_for_hw_watchpoint) (¤t_target, \
+ addr, len)
/* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
-1 for failure. */
#define target_insert_watchpoint(addr, len, type, cond) \
- (*current_target.to_insert_watchpoint) (addr, len, type, cond)
+ (*current_target.to_insert_watchpoint) (¤t_target, \
+ addr, len, type, cond)
#define target_remove_watchpoint(addr, len, type, cond) \
- (*current_target.to_remove_watchpoint) (addr, len, type, cond)
+ (*current_target.to_remove_watchpoint) (¤t_target, \
+ addr, len, type, cond)
/* Insert a new masked watchpoint at ADDR using the mask MASK.
RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
+/* Insert a hardware breakpoint at address BP_TGT->placed_address in
+ the target machine. Returns 0 for success, and returns non-zero or
+ throws an error (with a detailed failure reason error code and
+ message) otherwise. */
+
#define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
- (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt)
+ (*current_target.to_insert_hw_breakpoint) (¤t_target, \
+ gdbarch, bp_tgt)
#define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
- (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt)
+ (*current_target.to_remove_hw_breakpoint) (¤t_target, \
+ gdbarch, bp_tgt)
/* Return number of debug registers needed for a ranged breakpoint,
or -1 if ranged breakpoints are not supported. */
For this reason, GDB will still evaluate the condition expression when
the watchpoint triggers. */
#define target_can_accel_watchpoint_condition(addr, len, type, cond) \
- (*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond)
+ (*current_target.to_can_accel_watchpoint_condition) (¤t_target, \
+ addr, len, type, cond)
/* Return number of debug registers needed for a masked watchpoint,
-1 if masked watchpoints are not supported or -2 if the given address
/* Target can execute in reverse? */
#define target_can_execute_reverse \
(current_target.to_can_execute_reverse ? \
- current_target.to_can_execute_reverse () : 0)
+ current_target.to_can_execute_reverse (¤t_target) : 0)
extern const struct target_desc *target_read_description (struct target_ops *);
#define target_get_ada_task_ptid(lwp, tid) \
- (*current_target.to_get_ada_task_ptid) (lwp,tid)
+ (*current_target.to_get_ada_task_ptid) (¤t_target, lwp,tid)
/* Utility implementation of searching memory. */
extern int simple_search_memory (struct target_ops* ops,
#define target_can_use_agent() \
(*current_target.to_can_use_agent) ()
+#define target_augmented_libraries_svr4_read() \
+ (*current_target.to_augmented_libraries_svr4_read) ()
+
/* Command logging facility. */
#define target_log_command(p) \
do \
if (current_target.to_log_command) \
- (*current_target.to_log_command) (p); \
+ (*current_target.to_log_command) (¤t_target, \
+ p); \
while (0)
extern int target_core_of_thread (ptid_t ptid);
+/* See to_get_unwinder in struct target_ops. */
+extern const struct frame_unwind *target_get_unwinder (void);
+
+/* See to_get_tailcall_unwinder in struct target_ops. */
+extern const struct frame_unwind *target_get_tailcall_unwinder (void);
+
/* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
if there's a mismatch, and -1 if an error is encountered while
/* Routines for maintenance of the target structures...
+ complete_target_initialization: Finalize a target_ops by filling in
+ any fields needed by the target implementation.
+
add_target: Add a target to the list of all possible targets.
push_target: Make this target the top of the stack of currently used
unpush_target: Remove this from the stack of currently used targets,
no matter where it is on the list. Returns 0 if no
- change, 1 if removed from stack.
-
- pop_target: Remove the top thing on the stack of current targets. */
+ change, 1 if removed from stack. */
extern void add_target (struct target_ops *);
extern void add_target_with_completer (struct target_ops *t,
completer_ftype *completer);
+extern void complete_target_initialization (struct target_ops *t);
+
/* Adds a command ALIAS for target T and marks it deprecated. This is useful
for maintaining backwards compatibility when renaming targets. */
extern void target_preopen (int);
-extern void pop_target (void);
-
/* Does whatever cleanup is required to get rid of all pushed targets. */
extern void pop_all_targets (void);
struct bfd_section *the_bfd_section;
- /* A given BFD may appear multiple times in the target section
- list, so each BFD is associated with a given key. The key is
- just some convenient pointer that can be used to differentiate
- the BFDs. These are managed only by convention. */
- void *key;
-
- bfd *bfd; /* BFD file pointer */
+ /* The "owner" of the section.
+ It can be any unique value. It is set by add_target_sections
+ and used by remove_target_sections.
+ For example, for executables it is a pointer to exec_bfd and
+ for shlibs it is the so_list pointer. */
+ void *owner;
};
/* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
/* From mem-break.c */
-extern int memory_remove_breakpoint (struct gdbarch *,
+extern int memory_remove_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
-extern int memory_insert_breakpoint (struct gdbarch *,
+extern int memory_insert_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
extern int default_memory_remove_breakpoint (struct gdbarch *,
extern void find_default_create_inferior (struct target_ops *,
char *, char *, char **, int);
-extern struct target_ops *find_run_target (void);
-
extern struct target_ops *find_target_beneath (struct target_ops *);
+/* Find the target at STRATUM. If no target is at that stratum,
+ return NULL. */
+
+struct target_ops *find_target_at (enum strata stratum);
+
/* Read OS data object of type TYPE from the target, and return it in
XML format. The result is NUL-terminated and returned as a string,
allocated using xmalloc. If an error occurs or the transfer is
void target_ignore (void);
/* See to_supports_btrace in struct target_ops. */
-extern int target_supports_btrace (void);
+#define target_supports_btrace() \
+ (current_target.to_supports_btrace (¤t_target))
/* See to_enable_btrace in struct target_ops. */
extern struct btrace_target_info *target_enable_btrace (ptid_t ptid);
extern void target_teardown_btrace (struct btrace_target_info *btinfo);
/* See to_read_btrace in struct target_ops. */
-extern VEC (btrace_block_s) *target_read_btrace (struct btrace_target_info *,
- enum btrace_read_type);
+extern enum btrace_error target_read_btrace (VEC (btrace_block_s) **,
+ struct btrace_target_info *,
+ enum btrace_read_type);
/* See to_stop_recording in struct target_ops. */
extern void target_stop_recording (void);
/* See to_call_history_range. */
extern void target_call_history_range (ULONGEST begin, ULONGEST end, int flags);
+/* See to_decr_pc_after_break. Start searching for the target at OPS. */
+extern CORE_ADDR forward_target_decr_pc_after_break (struct target_ops *ops,
+ struct gdbarch *gdbarch);
+
+/* See to_decr_pc_after_break. */
+extern CORE_ADDR target_decr_pc_after_break (struct gdbarch *gdbarch);
+
#endif /* !defined (TARGET_H) */
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